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GeForce GTX 1060 3GB vs Radeon HD 6990

Intro

The GeForce GTX 1060 3GB makes use of a 16 nm design. nVidia has set the core speed at 1506 MHz. The GDDR5 RAM works at a frequency of 2000 MHz on this card. It features 1152 SPUs along with 72 TAUs and 48 Rasterization Operator Units.

Compare all of that to the Radeon HD 6990, which makes use of a 40 nm design. AMD has set the core frequency at 830 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this specific model. It features 1536 SPUs as well as 96 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1060 3GB 120 Watts
Radeon HD 6990 375 Watts
Difference: 255 Watts (213%)

Memory Bandwidth

In theory, the Radeon HD 6990 should perform a lot faster than the GeForce GTX 1060 3GB overall. (explain)

Radeon HD 6990 320000 MB/sec
GeForce GTX 1060 3GB 196608 MB/sec
Difference: 123392 (63%)

Texel Rate

The Radeon HD 6990 will be a lot (about 47%) more effective at texture filtering than the GeForce GTX 1060 3GB. (explain)

Radeon HD 6990 159360 Mtexels/sec
GeForce GTX 1060 3GB 108432 Mtexels/sec
Difference: 50928 (47%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 1060 3GB is superior to the Radeon HD 6990, by far. (explain)

GeForce GTX 1060 3GB 72288 Mpixels/sec
Radeon HD 6990 53120 Mpixels/sec
Difference: 19168 (36%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 1060 3GB

Amazon.com

Radeon HD 6990

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 1060 3GB Radeon HD 6990
Manufacturer nVidia AMD
Year August 2016 March 2011
Code Name GP106-300 Antilles
Memory 3072 MB 2048 MB (x2)
Core Speed 1506 MHz 830 MHz (x2)
Memory Speed 8000 MHz 5000 MHz (x2)
Power (Max TDP) 120 watts 375 watts
Bandwidth 196608 MB/sec 320000 MB/sec
Texel Rate 108432 Mtexels/sec 159360 Mtexels/sec
Pixel Rate 72288 Mpixels/sec 53120 Mpixels/sec
Unified Shaders 1152 1536 (x2)
Texture Mapping Units 72 96 (x2)
Render Output Units 48 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit (x2)
Fab Process 16 nm 40 nm
Transistors 4400 million 2640 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12.0 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

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